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	This string  (followed by a slash '/' character) will be used to prefix each uploaded artifact's file name,<br />
	allowing you to form a virtual directory hierarchy. Any combination of characters can be used, but <br />
	reserved URL characters must be properly escaped. <br />
	
	Environment variables can also be referenced. <br/>
	For example: ${BUILD_ID}/${BUILD_NUMBER}/ <br />
	${BUILD_ID} value will be in the form of YYYY-MM-DD_hh-mm-ss 
	 
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